[INFO] fetching crate twitter-card 1.0.1...
[INFO] checking twitter-card-1.0.1 against master#a5f164faad4a2fed606b8160fd7ecd2d5cbba381 for pr-84920
[INFO] extracting crate twitter-card 1.0.1 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate twitter-card 1.0.1 on toolchain a5f164faad4a2fed606b8160fd7ecd2d5cbba381
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate twitter-card 1.0.1
[INFO] finished tweaking crates.io crate twitter-card 1.0.1
[INFO] tweaked toml for crates.io crate twitter-card 1.0.1 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 337c68fe5ab24b7940e4e0e8a3e589e0e4dd537806353962ab323669d8947d3f
[INFO] running `Command { std: "docker" "start" "-a" "337c68fe5ab24b7940e4e0e8a3e589e0e4dd537806353962ab323669d8947d3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "337c68fe5ab24b7940e4e0e8a3e589e0e4dd537806353962ab323669d8947d3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "337c68fe5ab24b7940e4e0e8a3e589e0e4dd537806353962ab323669d8947d3f", kill_on_drop: false }`
[INFO] [stdout] 337c68fe5ab24b7940e4e0e8a3e589e0e4dd537806353962ab323669d8947d3f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 20acbfd10c78f3a92a64085ba0bdb695084a6ac25f29b4937b8e92d7e37b1fbc
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "20acbfd10c78f3a92a64085ba0bdb695084a6ac25f29b4937b8e92d7e37b1fbc", kill_on_drop: false }`
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]     Checking backtrace v0.3.59
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking twitter-card v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.22s
[INFO] running `Command { std: "docker" "inspect" "20acbfd10c78f3a92a64085ba0bdb695084a6ac25f29b4937b8e92d7e37b1fbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20acbfd10c78f3a92a64085ba0bdb695084a6ac25f29b4937b8e92d7e37b1fbc", kill_on_drop: false }`
[INFO] [stdout] 20acbfd10c78f3a92a64085ba0bdb695084a6ac25f29b4937b8e92d7e37b1fbc